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Multi-tier Web Application using ASP.NET

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A Multi-tier Web Application includes 4 layers:

  • Web Layer (Presentation Layer)
  • Business Rules Layer
  • Data Access Layer

From the post in [1], the author based on the Microsoft Architecture exams and has a conclusion that Multi-Tiers are either physical or logical, physical being “machines”, such as client – server and logical being the layers Presentation, Business Logic and Data Access.

Internet explorer and IIS count as tiers anyway, so yes you are multi tier.

[1] Multi-tier Web Application using ASP.NET, Microsoft ASP.NET,, retrieved in 13/08/2010
[2] Deploy Patterns, Microsoft MSDN,, retrieved in 13/08/2010
[3] Building a 3-Tier Application using ASP.NET, C# Corner,, retrieved in 13/08/2010 
[4] Building a Multi-Tier Web Application in the .NET 3.5 Framework Using LINQ to SQL, The Code Project,, retrieved in 13/08/2010 
[5] Three-Tier Architecture, Linux Journal,,2, accessed in 13/08/2010
[6] Multi-tier web application in ASP.NET, Microsoft ASP.NET,, accessed in 13/08/2010
[7] 3-tier Architecture with ASP.NET 2.0, Microsoft MSDN Library,, accessed in 14/08/2010

À propos Nguyen Vu Ngoc Tung

I love making new professional acquaintances. Don't hesitate to contact me via if you want to talk about information technology, education, and research on complex networks analysis (i.e., metabolic networks analysis), data analysis, and applications of graph theory. Specialties: researching and proposing innovative business approaches to organizations, evaluating and consulting about usability engineering, training and employee development, web technologies, software architecture.

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